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    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script>
      alert(d);
      var a = 10;
      var b = "hello";
      c = true;
      function fun() {}
      var d = 35;
    </script>
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  <body></body>
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